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Finding the Fourth Proportional to 157,192.54, 216,925.74 and 85,572.54

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Solution

The fourth proportional to 157,192.54, 216,925.74 and 85,572.54 is: 118,090.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,192.54 : 216,925.74 = 85,572.54 : x
  2. Step 2: Convert to fraction form
    157,192.54/216,925.74 = 85,572.54/x
  3. Step 3: Cross multiply
    157,192.54x = 216,925.74 × 85,572.54
  4. Step 4: Simplify right side
    157,192.54x = 18,562,886,135.32
  5. Step 5: Solve for x
    x = 18,562,886,135.32/157,192.54
  6. Step 6: Final answer
    x = 118,090.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.